Q16 / 160 · AP EAMCET 2021 (23 Aug Shift 1) · Chemistry

Which of the following gas has the highest $\mathrm{pH}$ at $25^{\circ} \mathrm{C}$ ?

  • A
    Distilled $\mathrm{H}_2 \mathrm{O}$
  • B
    $1 \mathrm{Maq} \mathrm{NH}_3$
  • Correct answer
    C
    $1 \mathrm{M} \mathrm{NaOH}$
  • D
    $1 \mathrm{M} \mathrm{HCl}$

Solution

Bases have high pH. Since, $\mathrm{NaOH}$ is a strong base among the given options. Therefore, it will have highest $\mathrm{pH}$.

Hence, the correct answer is option: 'C'.

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